Have Outlook 2010 Authentication Problems on an Office 365 Machine?
Is your computer’s Outlook 2010 refusing to authenticate or won’t save your password when trying to connect to Office365? There is a Microsoft patch for that. The patch is kb2553248 and links from here…http:/
This week, I had one computer that just wouldn’t authenticate after an autodiscovery setup Outlook 2010 that gave all green checkmarks. It said: “You must restart Outlook”. When I did, it wouldn’t accept the password. So I ran the patch above and it worked as designed. Problem solved.
I believe this patch comes down in Office SP2. But for some reason, even though Windows Update said no updates available, this one fixed the issue instantly. I hope this saves someone else the 5 hours it took me to find the glitch in M/$ and Office 365. Tally-Ho!!